title: Pre- and post-processing for tomographic reconstruction of terahertz time-domain spectroscopy.
abstract: Reflection-type terahertz tomography is obtained using time-domain spectroscopy. Due to different velocities of the terahertz ray in free space and inside a sample, the tomographic transverse plane is not obtained by a simple reconstruction using time index. A pre-processing method is proposed to compensate for the different velocities of the terahertz ray for tomographic reconstruction. Maximum intensity projection, averaging, and short-time Fourier transform are proposed as post-processing methods along the depth direction for the terahertz tomography. Log-scale display is also suggested for a better visualization. Some experimental results with the pre- and post-processing are demonstrated.
authors.forename: Hye-Jin
authors.initials: HJ
authors.lastname: Hong
authors.forename: Jinho
authors.initials: J
authors.lastname: Park
authors.forename: Hochong
authors.initials: H
authors.lastname: Park
authors.forename: Joo-Hiuk
authors.initials: JH
authors.lastname: Son
authors.forename: Chang-Beom
authors.initials: CB
authors.lastname: Ahn